package com.lory.springcloud.lib;

import org.springframework.cloud.client.ServiceInstance;
import org.springframework.stereotype.Component;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @Description TODO
 * @Author lory
 * @Date 2020/3/13 0013
 * @Version V3.1
 **/
@Component
public class MyLB implements LoadBalancer {

    private AtomicInteger atomicInteger = new AtomicInteger(0);

    public final int getAndIncrement(){
        int current;
        int next;
        do {
            current = this.atomicInteger.get();
            next = current >= 2147483647 ? 0: current +1;
        }while (!this.atomicInteger.compareAndSet(current, next));
        System.out.println("********next：" + next);
        return next;
    }

    @Override
    public ServiceInstance instance(List<ServiceInstance> serviceInstances) {
        return null;
    }
}
